I setup a new installation of Veeam ONE, as we had the licensing but no one ever implemented it where I work.

After configuring the vCenter connection in Veeam ONE, it started to collect data (all default settings). We make use of VMware VSAN and so only have a VSAN datastore.
I noticed a number of alarms appearing in vCenter, to do with the VSAN Stats DB (VSAN performance metrics), and also some hosts experiencing connectivity issues.

I had to shutdown the Veeam ONE server, and everything then returned to normal shortly after.

So I have a temporary fix from support to change some files in Veeam ONE, so it does not query the vSAN performance metrics so often, that resolved the initial problem. Now I have an issue with Veeam ONE not being able to complete the data collection, it finishes with a warning as it reaches the timeout limit.

I saw in this weeks Veeam community digest that a new version of Veeam ONE has been released.
Are there any fixes in this release for vSAN?
Where can I get the release notes?

So finally after weeks I've eventually had someone from Support actually confirm that Veeam ONE causes the following alarms to appear in vCenter:
"vSAN object health" and "Hosts with connectivity issues".

This is in 9.5 Update 4 and in 4a they disabled the vSAN performance monitoring to workaround it. So I'm not getting any performance data in Veeam ONE for the vSAN datastore.